Door.



J. G. DUNER. DOOR.

. APPLICATION FILED APRJLIQOB. 963,752.

Patented July 12, 1910.

8BHBBT8+SEBET 1.

INVEMTOR I Z$M J. G. DUNER.

DOOR.

963,752. Patented July 12, 1910.

2 SHEETS-SHEET 2.

tiNrrE an era JOHN C. DUNER, OF WHEATON, ILLINOIS.

To all whom it may 'concern' lie it known that I, JOHN C. DUNER, acitizen of the United States, residing at Wheaton, in the county ofDupage and State of Illinois, have invented certain new and usefulImprovements in Doors, of which the following is a specification.

The invention relates to the construction of multiple swinging doors orgates, and has for its principal objects; the provision of an improvedand simplified door of this character adapted to swing back from itsplane of closure a minimum distance in opening and closing; theprovision of a door of the type specified so arranged to fold compactlyand provided with means for positively guiding the door sections tofolded position; and the provision of improved and simplified means forholding the doors in closed position. Certain embodiments of theinvention are illustrated in the accompanying drawings, wherein Figure 1isa plan view of the construction with the door in open or foldedposition,

I igure 2 is a similar view with the door in closed or unfoldedposition,

Figure 3 is a partial side elevation of the construction shown in Figure2,'

Figure 4 is an enlarged detail new showing the means for locking the twoouter sec tions of the door together,

Figure 5 is an enlarged detail view showing the means'for locking :thetwo inner sections together,

Figure 6 is an enlarged detail view showing the joint between the door jamb and the outer section of the door,

Figure 7 is a plan View of a modified form of construction with the doorin closed position,

Figure 8 is a similar view with the door in open position,

Figure 9 is a partial side elevation of the construction shown in Figure7, and

Figure 10 is an enlarged detail View showing the means for locking thethree sections of the door together.

Referring to Figures 1, 2 and 3, it will be seen that the doorconsists'of four sections, 1, 2, 3 and 4, hinged together by means ofthe hinges 5, 6 and 7. The inner supporting section 1 is pivoted to thedoor jamb 8 by means of the hinge 9. The member 10 provided with theguide grooves 11 and 12 is secured to the casing of the door above theSpecification of Letters Patent.

Application filed April 11, 1908.

Patented July 12, 1910. Serial No. 426,481.

sections, and the sections 2 and 4 are engaged therewith by means of theroller studs 13 at the upper ends of such sections. By this constructionthe outer edges of the sections 2 and 4 are made to follow the course'of the slots 11 and 12 when the doors are opened or closed, and suchouter edges are thus positively carried to their proper positions whenthe supporting section 1 is moved either to open or closed position. Thedoor jamb adjacent the edge of the section 4 is grooved at 14 asindicated in detail in Figure 5 and the edge of the section 4 isprovided with beveled members 15 for fitting into this groove, the bevelshape permitting of the easy withdrawal of the edge of the door from.the groove when the door is opened and its proper engagement-with suchV groove when the door 15 again moved to closed position. means forlocking the sections 3 and 4 t0- gether when they aremoved to the foldedposition of Figure 1. This means consists of the .latch bar 16 havingthe catch 17 and pivoted as'shown in the slot 18 of the section 3. Thesection 4 has a slot 19 opposite the slot 18 and when the sections 3 and4 are brought together the catch 17 engages the plate 20 on the section4. The sections 1 and 2 are locked together by the mechanism shown inFigure 5. The latch bar 21 similar to the bar 16 is secured to thesection 1 and engages with the plate 22 on the section 2 in the samemanner that the latch bar 16 engages the plate 20 on the section 4. Theinner end of the latch bar 21 is provided with the hook 23 which engagesthe bent rod 24 when the section 1 is moved to the position shown inFigure 1, the bent rod 24 being secured to the door framing.

The modified arrangement shown in F igures 7, 8, 9 and 10 differs fromthe modification just described, in that the door consists of only thethree sections 1, 2, 3 instead of four. The construction also difiers inthat the guide stud 13 is differently located with respect to thesection 3 than are the studs 13 with respect to the sections 2 and 4,which change in location necessitates a somewhat different arrangementof the inner ends ofthe guide slot 12. The looking bar 25 operates insubstantially the same manner as the bar shown in Figure 5, but theconstruction is so modified that the bar serves to hold all threesections instead of only two. The bar is pivoted to the central Figure 4illustrates the section 2 and its outer end projects through I one sideof the center line of the door with the section 3 and enga es the plate26 on the outside of such section when the parts are in folded position.The inner end of the bar projects through the section 1. and engages thebent holding bar 27 when the parts are in the position shown in Figure8.

Having thus described my invention and illustrated its use, what I claimas new and desire to secure by Letters Patent is the t'ol lowing 1. Incombination, a door construction comprising an inner hinged section, asecond section hinged to the outer edge of the inner section, a thirdsection hinged to the outer edge of the second section, and a pair ofslots lyingto one side of the center line of the doorway with which twoof the sections; engage and are gulded to folded position when the innersection is swung to open position.

2. In combination, a door construction comprising an inner hingedsection, a second section hinged to the outer edge of the inner sectionto swing in a direction opposite to the direction of swing of the innersection, a third section hinged to the outer edge of the second sectionto swing in a direction opposite to the direction of swing of the secondsection, a fourth section hinged to the outer edge of the third sectionto swing in a direction opposite to the direction of swing of the thirdsection and a pair of slots lying to one side of the center line of thedoor with which the second and second, third and fourth sections aredirected to folded position when the inner section is moved to openposition.

3. In combination, a door construction comprising an inner hingedsection, a second section hinged to the outer edge of the inner sectionto swing in a direction opposite to the direction of swing of the innersection, a third section hinged to the outer edge of the second sectionto swing in a'direction opposite'to the directionof swing of the secondsection, a fourth section hinged to the outer edge of the third sectionto swing in a direction opposite to the direction of swing of the thirdsection, and a pair of approximately parallel guide slots lying to whichthe second and fourth sections ,engage and by which the second, thirdand fourth sections are directed to folded posi-' tion when the innersection is moved to open position.

4. A hinged door consisting of a plurality of hinged sectionsalternately folding in opposite directions, together with a plurality ofguide slots, lying to one side of the center line of the door-way andengaging means on every other section engaging one of the slots and soarranged that the sections are guided in their movements to open and 1closed position.

5. A hinged door consisting of a plurality of hinged sections foldingupon each other, alined slots in the sections, a catch bar secured toone of the sections and extending through the slots when the sectionsare folded againsteach other, stationary engaging means mounted adjacentthe position occupied by the slots when the sections are folded, meanson one end of the catch bar for engaging the stationary means, and meanson the other end of the catch bar for engaging and holding the outersection when the sections are in folded position.

6. A door comprising in combination a plurality of sections hingedtogether in series, and guide means therefor comprising a plurality ofoverlapping slots of different lengths all lying on the same side of thedoors and cooperating means on the sections engaging the slots.

7. A hinged door consisting of a plurality of hinged sectionsalternately folding in opposite directions together with a plurality ofguide slots lying to one side of the center line of the door-way andinclined with respect thereto, and engaging means on alternate sectionsengaging the slots and so arranged that the sections are guided in theirmoven'lents to open and closed position.

In testimony whereof I have hereunto signed my name .in the presence ofthe two subscribed witnesses.

JOHN C. DUNER.

\Vitnesses PAUL CARPENTER, Alirnnn Ynwnm. ANDREWS.

